Fluidized bed combustion of petroleum coke coagglomerated with lime or limestone

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Proceedings titleProceedings of the Fourth UNITAR/UNDP International Conference on Heavy Crude and Tar Sands, 1988.
ConferenceThe Fourth UNITAR/UNDP International Conference on Heavy Crude and Tar Sands, Edmonton, Alberta, August 7-12, 1988
Article number22
AbstractThe relatively high sulfur content of coke produced during the upgrading of Athabasca bitumen makes it environmentally unsuitable as a fuel. Using heavy oil or bitumen as a binder we have attempted to coagglomerate these cokes with limestone, in an attempt to reduce emissions during combustion. By providing an environment where there is intimate contact between fuel and sorbent it was hoped that greater utilization of the sorbent could be achieved, compared to the systems where the sorbent is added separately to the combustion bed. Cokes from both Suncor and Syncrude operations were used in this investigation. The combustion tests on coke-sorbent agglomerates were carried out in a bench scaled fluidized bed apparatus at 850 degrees Celsius. Test results indicated sulfur capture of over 60% for Syncrude coke and over 50% for Suncor coke with a calcium to sulfur molar ration of 1:1. The presence of moisture did not appear to have any significant effect on sulfure caputre. Other variables investigated included: the role of binder, the effect of coke size and calcium to sulfur mole ratio.
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AffiliationNRC Institute for Chemical Process and Environmental Technology; National Research Council Canada (NRC-CNRC)
Peer reviewedYes
NRC number51949
NPARC number15677141
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Record identifier92c05326-8b25-4773-b81d-b4cb933bef10
Record created2010-06-15
Record modified2016-05-09
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